16777112641 has 2 divisors, whose sum is σ = 16777112642. Its totient is φ = 16777112640.

The previous prime is 16777112633. The next prime is 16777112719. The reversal of 16777112641 is 14621177761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559909041 + 4217203600 = 112071^2 + 64940^2 .

It is an emirp because it is prime and its reverse (14621177761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16777112641 - 2³ = 16777112633 is a prime.

It is not a weakly prime, because it can be changed into another prime (16777110641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388556320 + 8388556321.

It is an arithmetic number, because the mean of its divisors is an integer number (8388556321).

Almost surely, 2^16777112641 is an apocalyptic number.

It is an amenable number.

16777112641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16777112641 is an equidigital number, since it uses as much as digits as its factorization.

16777112641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 43.

The spelling of 16777112641 in words is "sixteen billion, seven hundred seventy-seven million, one hundred twelve thousand, six hundred forty-one".